The Extended Day can hold about 6 flakes, up to 50 pounds of hay or a 2-string bale net. This net needs to filled every other day once the horse is satiated and trust is rebuilt that it will never again be without forage. Made in the USA. Size refers to mesh openings.The goal of Freedom Feeder is for every horse to have high fiber, low calorie forage available 24/7. Using Freedom Feeders is a way to free us from meal routines and help our horses live happier, healthier, and more natural lives, think of them as Pastures In A Net. Freedom Feeders may eliminate anxiety around meal time, reduce the likelihood of colic, and behavioral issues such as weaving, or pacing.Our Freedom Feeders are available in 3 different size Mesh openings, so that your horse can have the most optimized feeding experience. It is important that you chose the proper opening for your equine partner:1'' Mesh opening is ideally suited for slow feeding INSULIN RESISTANT OR SMALLER grazing animals1.5'' Mesh openings is ideally suited for optimal slow feeding which is meant to mimic grazing and slow consumption. This is our most One size fits all option2'' Mesh opening is ideally suited as a transition feeding option for the AGGRESSIVE eaters and larger horses. If you have an aggressive eater, our suggestion is to start at this option and slowly transition to the 1.5 size